Bottom Line:
Of all cases, 68% of cases contracted Plasmodium vivax, 27% of cases contracted P. falciparum, and two cases contracted P. malariae.The median age was 33 years, and 1,892 cases occurred in persons aged 20-50 years.The proportion of businessmen increased and the proportion of migrant laborers decreased in recent years.

Bottom Line:
Of all cases, 68% of cases contracted Plasmodium vivax, 27% of cases contracted P. falciparum, and two cases contracted P. malariae.The median age was 33 years, and 1,892 cases occurred in persons aged 20-50 years.The proportion of businessmen increased and the proportion of migrant laborers decreased in recent years.